Add simple UI Automator tests.

.github/workflows/build.yaml

@@ -10,7 +10,7 @@ on:
 
 jobs:
   build:
-    runs-on: ubuntu-latest
+    runs-on: macos-latest
 
     steps:
       - uses: actions/[email protected]
@@ -21,7 +21,13 @@ jobs:
           distribution: 'zulu'
           java-version: 8
 
-      - run: ./gradlew build
+      - run: ./gradlew build assembleAndroidTest
+
+      - name: Run Tests
+        uses: reactivecircus/android-emulator-runner@v2
+        with:
+          api-level: 24
+          script: ./gradlew connectedCheck
 
       - run: ./gradlew uploadArchives
         if: ${{ github.ref == 'refs/heads/trunk' && github.repository == 'JakeWharton/ProcessPhoenix' }}

build.gradle

@@ -18,4 +18,9 @@ allprojects {
 ext {
   minSdkVersion = 11
   compileSdkVersion = 30
+
+  supportTestRunner = 'com.android.support.test:runner:0.3'
+  supportTestRules = 'com.android.support.test:rules:0.3'
+  supportTestUiAutomator = 'com.android.support.test.uiautomator:uiautomator-v18:2.1.1'
+  truth = 'com.google.truth:truth:0.27'
 }

process-phoenix/build.gradle

@@ -1,10 +1,18 @@
 apply plugin: 'com.android.library'
 
+dependencies {
+  androidTestImplementation rootProject.ext.supportTestRunner
+  androidTestImplementation rootProject.ext.supportTestRules
+  androidTestImplementation rootProject.ext.supportTestUiAutomator
+  androidTestImplementation rootProject.ext.truth
+}
+
 android {
   compileSdkVersion rootProject.ext.compileSdkVersion
 
   defaultConfig {
     minSdkVersion rootProject.ext.minSdkVersion
+    testInstrumentationRunner 'android.support.test.runner.AndroidJUnitRunner'
   }
 
   compileOptions {

process-phoenix/src/androidTest/AndroidManifest.xml

@@ -0,0 +1,15 @@
+<manifest
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    package="com.jakewharton.processphoenix"
+    >
+  <uses-permission android:name="android.permission.DISABLE_KEYGUARD"/>
+  <uses-permission android:name="android.permission.WAKE_LOCK"/>
+
+  <!-- TODO http://b.android.com/179651 -->
+  <uses-sdk
+      android:minSdkVersion="18"
+      tools:overrideLibrary="android.support.test, android.app, android.support.test.rule, android.support.test.uiautomator.v18"
+      />
+  <application/>
+</manifest>

process-phoenix/src/androidTest/java/com/jakewharton/processphoenix/ProcessPhoenixTest.java

@@ -0,0 +1,103 @@
+package com.jakewharton.processphoenix;
+
+import android.app.Instrumentation;
+import android.app.KeyguardManager;
+import android.content.Context;
+import android.content.Intent;
+import android.content.pm.PackageManager;
+import android.os.PowerManager;
+import android.support.test.InstrumentationRegistry;
+import android.support.test.runner.AndroidJUnit4;
+import android.support.test.uiautomator.UiDevice;
+import android.support.test.uiautomator.UiObject;
+import android.support.test.uiautomator.UiObjectNotFoundException;
+import android.support.test.uiautomator.UiSelector;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static android.content.Context.KEYGUARD_SERVICE;
+import static android.content.Context.POWER_SERVICE;
+import static android.content.Intent.CATEGORY_LAUNCHER;
+import static android.content.Intent.FLAG_ACTIVITY_NEW_TASK;
+import static android.os.PowerManager.ACQUIRE_CAUSES_WAKEUP;
+import static android.os.PowerManager.FULL_WAKE_LOCK;
+import static android.os.PowerManager.ON_AFTER_RELEASE;
+import static com.google.common.truth.Truth.assertThat;
+import static java.util.concurrent.TimeUnit.SECONDS;
+import static org.junit.Assert.assertTrue;
+
+@RunWith(AndroidJUnit4.class)
+public final class ProcessPhoenixTest {
+  private static final String PROCESS_ID = "Process ID: ";
+  private static final String EXTRA_TEXT = "Extra Text: ";
+  private static final String TARGET_PACKAGE = "com.jakewharton.processphoenix.sample";
+
+  private final Context context = InstrumentationRegistry.getTargetContext();
+  private final Instrumentation instrumentation = InstrumentationRegistry.getInstrumentation();
+  private final UiDevice device = UiDevice.getInstance(instrumentation);
+
+  private PowerManager.WakeLock wakeLock;
+
+  @Before public void launchSample() {
+    PackageManager pm = context.getPackageManager();
+    Intent intent = pm.getLaunchIntentForPackage(TARGET_PACKAGE);
+    if (intent == null) {
+      throw new AssertionError("ProcessPhoenix Sample not installed.");
+    }
+
+    // Unlock the device so that the tests can input keystrokes.
+    KeyguardManager keyguard = (KeyguardManager) context.getSystemService(KEYGUARD_SERVICE);
+    keyguard.newKeyguardLock("test").disableKeyguard();
+    // Wake up the screen.
+    PowerManager power = (PowerManager) context.getSystemService(POWER_SERVICE);
+    wakeLock = power.newWakeLock(FULL_WAKE_LOCK | ACQUIRE_CAUSES_WAKEUP | ON_AFTER_RELEASE, "test");
+    wakeLock.acquire();
+
+    intent.addCategory(CATEGORY_LAUNCHER);
+    intent.addFlags(FLAG_ACTIVITY_NEW_TASK);
+    context.startActivity(intent);
+    waitForWindow();
+  }
+
+  private void waitForWindow() {
+    assertTrue(device.waitForWindowUpdate(TARGET_PACKAGE, SECONDS.toMillis(15)));
+  }
+
+  @After public void tearDown() {
+    wakeLock.release();
+  }
+
+  @Test public void triggerRebirthCreatesNewProcess() throws UiObjectNotFoundException {
+    UiObject originalObject = device.findObject(new UiSelector().textStartsWith(PROCESS_ID));
+    int originalId = Integer.parseInt(originalObject.getText().substring(PROCESS_ID.length()));
+
+    device.findObject(new UiSelector().text("Restart Process")).click();
+    waitForWindow();
+
+    UiObject newObject = device.findObject(new UiSelector().textStartsWith(PROCESS_ID));
+    int newId = Integer.parseInt(newObject.getText().substring(PROCESS_ID.length()));
+
+    assertThat(originalId).isNotEqualTo(newId);
+  }
+
+  @Test public void triggerRebirthWithIntentCreatesNewProcessUsingIntent()
+      throws UiObjectNotFoundException {
+    UiObject originalObject = device.findObject(new UiSelector().textStartsWith(PROCESS_ID));
+    int originalId = Integer.parseInt(originalObject.getText().substring(PROCESS_ID.length()));
+
+    device.findObject(new UiSelector().text("Restart Process with Intent")).click();
+    waitForWindow();
+
+    UiObject newObject = device.findObject(new UiSelector().textStartsWith(PROCESS_ID));
+    int newId = Integer.parseInt(newObject.getText().substring(PROCESS_ID.length()));
+
+    assertThat(originalId).isNotEqualTo(newId);
+
+    UiObject extraObject = device.findObject(new UiSelector().textStartsWith(EXTRA_TEXT));
+    String extraText = extraObject.getText().substring(EXTRA_TEXT.length());
+
+    assertThat(extraText).isEqualTo("Hello!");
+  }
+}